BPC-157 Reconstitution Calculator: Dose & Syringe Units

Worked examples

5 mg vial, 2 mL water, 250 mcg dose

Concentration = 5 ÷ 2 = 2.5 mg/mL = 2,500 mcg/mL. Volume = 250 ÷ 2,500 = 0.1 mL = 10 units on a U-100 syringe. About 20 doses per vial.

5 mg vial, 1 mL water, 250 mcg dose

Concentration = 5 mg/mL = 5,000 mcg/mL. Volume = 250 ÷ 5,000 = 0.05 mL = 5 units. About 20 doses per vial.

10 mg vial, 2 mL water, 500 mcg dose

Concentration = 5 mg/mL = 5,000 mcg/mL. Volume = 500 ÷ 5,000 = 0.1 mL = 10 units. About 20 doses per vial.

Reading mcg per unit

A 5 mg vial in 2 mL is 25 mcg per unit, so 250 mcg is 10 units and 500 mcg is 20 units. The calculator shows mcg per unit so you can confirm before drawing.

Reconstituting BPC-157, step by step

BPC-157 is a synthetic peptide studied for its effects in animal tissue-repair research. Research-grade vials come as a lyophilized powder that must be reconstituted with bacteriostatic water before a dose can be measured. The one thing that sets BPC-157 apart from GLP-1 peptides is scale: it is dosed in micrograms rather than milligrams, so convert carefully.

The three steps

Concentration = vial (mg) ÷ water (mL). A 5 mg vial in 2 mL of bacteriostatic water is 2.5 mg/mL, or 2,500 mcg/mL.
Volume = dose (mg) ÷ concentration (mg/mL). A 250 mcg dose is 0.25 mg, so 0.25 ÷ 2.5 = 0.1 mL. (Enter the dose in mcg above and the conversion is automatic.)
Units = volume (mL) × 100. 0.1 mL is 10 units on a U-100 insulin syringe.

Micrograms per unit is the number to watch

Because BPC-157 doses are small, the most useful readout is micrograms per unit. A 5 mg vial in 2 mL gives 25 mcg per unit, so 250 mcg is 10 units and 500 mcg is 20 units on the same syringe. If you would rather draw fewer units, use less water: 1 mL gives 50 mcg per unit, halving the unit count for the same dose. The calculator shows mcg per unit for every combination so you can confirm before drawing.

Doses per vial

Divide the vial size by your dose in the same units. A 5 mg (5,000 mcg) vial at 250 mcg per dose gives 20 doses. The water volume does not change this count, only the units you measure each time.

Important safety note

BPC-157 is not an approved medicine, and research-grade vials are sold strictly for laboratory research, not human use. This calculator performs reconstitution arithmetic only; it does not recommend a dose, a frequency, or any use, and it cannot judge what is safe. Treat every result as an educational estimate, not medical advice. Verify the amount on your vial label, consult a licensed medical professional before acting, and follow all applicable laws.

Frequently asked questions

How do I reconstitute BPC-157?

Add bacteriostatic water to the freeze-dried powder, then divide the milligrams in the vial by the millilitres of water for the concentration. Because BPC-157 is dosed in micrograms, convert your dose to milligrams (divide mcg by 1,000) before dividing by the concentration, then multiply the volume by 100 for units. The calculator does this automatically when you choose mcg.

How much bacteriostatic water for a BPC-157 vial?

The water volume is your choice and only sets the concentration. A 5 mg vial with 2 mL of water gives 25 mcg per unit, so a 250 mcg dose is a clean 10 units. Using 1 mL instead doubles the concentration to 50 mcg per unit, so the same dose becomes 5 units.

BPC-157 is dosed in micrograms; how does that change the math?

Only the units in your dose field change. Enter the dose in mcg and the calculator converts to milligrams for you. Everything else is the same: concentration in mg/mL, volume in mL, and units on a U-100 syringe. It also reports micrograms per unit so small doses are easy to read.

Is this BPC-157 calculator medical advice?

No. BPC-157 is not an approved medicine and research-grade vials are sold for laboratory research only. This tool performs reconstitution math and nothing more. It does not recommend a dose, a frequency, or any use, and it cannot judge safety. Consult a licensed medical professional and follow all applicable laws.